Missouri Breaks - Missouri River
						Lewis & Clark Trail - Montana
	Hole-in-the Wall is the best known natural landmark in the White Cliffs area of the Upper Missouri National Wild and Scenic River. Top right and bottom left: looking up river it's hard to see the opening in the sandstone cliffs. Neither Lewis nor Clark mentioned it. Geologists figure that the opening hadn't been there in 1805-06. Bottom left and top right: Our ROW canoes approach Hole-in-the Wall moving down river. The opening is visible at the left end of the wall of sandstone.
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